Solve 3 circuits

Discussion in 'Homework Help' started by kokotas, Jan 25, 2011.

  1. kokotas

    Thread Starter New Member

    Jan 25, 2011
    2
    0
    Can someone solve these 3 circuits for me? These are from an old exam and I need to see the solutions. Maybe it will help for my next one, so plz

    circuit1:
    [​IMG]

    R=2kOhm, C1=6uF, C2=2uF, C3=1uF, V=17V
    Calculate the time constant of the circuit and also the voltage of every capacitor when I=4mA(current that runs through V1)

    circuit2:
    [​IMG]

    Calculate voltage Vo of this circuit. R1=1kOhm, R2=2kOhm, R3=200Ohm, VEE=10V, aDC=1. Diodes are ideal, silicon.

    circuit 3:
    [​IMG]

    Calculate the amperage I on resistor R2.
     
  2. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
    6,357
    718
    Please post work, as much as you've gotten for each circuit.

    If you don't know where to start, be specific with the questions. We generally do not simply provide answers, we help people realize them themselves.
     
  3. kokotas

    Thread Starter New Member

    Jan 25, 2011
    2
    0
    That was to be expected, but it was worth a shot. Electronics is not my thing really. Every semester I study from this site, I understand a lot of concepts and I am able to solve plenty of problems. But when I sit my exam I can't apply what I've learnt, I get lost and in the end fail. Then I get frustrated and don't even study for 6 months until I have to re-sit the exam.

    Anyway sorry for the rant. I'll try to make progress with those and get back to you with questions. Hopefully.
     
  4. Adjuster

    Well-Known Member

    Dec 26, 2010
    2,147
    300

    It's refreshing to see such honesty, but frankly you cannot expect to make much progress unless you can put more effort into it.

    If you really have no interest in this subject, why study it in the first place - is it a mandatory part of your syllabus?
     
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